Turbine compressor, pump, and the like.



,292. PATENTBD NOV. 19, 1907.

c. A. PARSONS & A. Q. CARNEGIE. TURBINE COMPRESSOR, PUEITPF AND THE LIKE.

APPLICATION FILED AUGJI. 1905.

2 SHEETS-SHEBT l.

.PIATENTED NOV. 19, 1907. 0. A. PARSONS & A. Q. CARNEGIE.

TURBINE GOMPRESSOR PUMP, AND THE LIKE.

APPLICATION FILED AUG. 2. 1905.

2 SHEETS-SHEET 2.

' blades, each blade setting up beats or vibra- 'eompressors, pumps, blowers and exhaust- 'eonvex moving blades arranged alternately ,tionable whistling noise is given out by the .'lhe noise is set. up by interaction between speed. of the machine and the number of moving blades,

.cording to. the construction shownin l ig-i. l

' multiple of the number of moving blades I),

ufirrnn e'rivrns PATENT eerie CHARLES ALCXERNON PARSONS AND ALFRED Q'UINIIN CARNEGIE, Oi NEWGASTLEJJPON- TYNE, ENGLAND; SAID UARNI'IGIF ASSIGNOR TO SAID PARSONS.

TURBINE COMPRESSOR, PUMP, AND THE LIKE.

Application filed Aug-11st castle-upo11-'lyne,'in the county of Northumberland, England, haye invented new and useful Improvements in 'lurbine Compress ors, Pumps, and the Like,jof which the folj lowing is a specification.

()ur invention relates to improvements in ers ol the turbine type.

lu turbine gas exhausters or blowers which consist of two or more rows of photowith rows -of 'lix'ed guide blades which are usually 'lixed to the inner surface of the cylindrical casing and project radially towards the shaft on which the moving blades are mounted, we lind that, sometimes an objecmachine', especially when run at high speeds.

the 'lixed radial guide blades and the moving tions havinga frequency corresponding to the Our nvention consists in making the 'lixed guides of spiral, zigzag or other irregular nonradial l'ori'n, so that the air projected from the moving blades shall .meet the lixed guides at an angle and gradually instead of broadside on and abruptly.

Referring now to the accompanying drawin'gsi -l igure is a' part longitudinal eetional view of the blower according to one construction oi our invention, the section being on the line A A of. Fig. 2. Fig. 2 is a cross sectional view on the line l3 ll of Fig. I. Fig. 3 is a cross sectional view of'a modified forni of our invention.

In carrying our invention into ell'eet ac.--

and 2,.we preferably choose the number of guide blades a so that they Will not lorm a and we curve them spirally so that any tangent will form an angle of approximately 45 degrees withthey radii. Wepreferably. curve. the blades with an inwardspiral in the direction of rotation of the moving blades,

Specification of Letters Patent.

2. 1905. Serial No. 272.437.

1 the arrow in Fi 9 experiment that Patented Nov. 19, 1907.

indicating the direction of rotation, so as to count eraet to some extent the effect of centrifugal to 'ee and throw the air back towards the center. We find by this gives a somewhat higher elliciency than if curved with an out ward spiral and reduces the noise and vibration when the machine is running at even very high speeds:

'lhe sets of spiral guide blades may beseeured at their outer ends to the inner surface of metal rings c, which-lie in grooves dma chined in the cylindrical casing c and secured by a suitable number of set pins /r or the like or are carried in any suitable manner with or without provision for adjust-intuit. 'lhe inner ends of the'guides if suitably still may be free, or they may be attached to ringsfsurrounding the shaft 5/ or surrounding the bosses ll. of the wheels or disks which carry the moving blades as shown. We prefer to make theguide blades with a greater longitudinal width at the periphery than at the root or center.

We sometimes use zigzag or other suitable irregularly shaped non radml guides instead of spiral guides, so that the an projected from the moviiu blades shall meet. theguides at an angle instead of abruptly. ln

l 'lg. 3 such a modilied form of the invention 1 Where in the appended claims we referred A to the moving b ades as having a (lill erent direction from that of the fixed blades in respect to the radius, it will be understood that it. is not meant by this that the moving blades are necessarilv nona'adial but that these moving blades have a'dill'erent direction from their inner to their outer ends in respect to the direction of the fixed blades from their inner to their ou er ends.

Having thus described our invention, what what we do claim as new and desire to secure by Letters Patent isc-- i. A turbine compressor or pump having fixed guide blades otnon-radial form, and movingblades arranged alongside the nonradial fixed guide. blades and having-a diil'erent direction lroni' that ol' the fixed blades in respect to the radius. r

2. A turbine compressor or pump having moving blades disposed along the shaft of the pump, and non-radial fixed blades reaching inwardly between the moving blades said moving blades having a dillierent direction from that of the fixed blades in respect to the radius, substantially as described.

0. A turbine compressor or pump having fixed guide blades of non-radial form, said blades being wider at the periphery than at the central part.

4. A turbine compressor or pump having I in combination rows oi moving blades, fixed spiral guide blades arranged alongside and alternately with said moving blades and said moving blades having a di'lierent direction from that of thefixed blades in respect to the radius. 1 i

5. A turbine. compressor or pump having in combination rows of moving blades, rows of fixed blades alternating witn and arranged alongside of said moving blades, said fixed blades being curved spirally inwards in thedirection of rotation of the moving blades and said moving blade's having a ditl'erent direction from that of the fixed blades in 're spect to the radius.

6L A turbine compressor or pump having in combination rows of moving blades, rows of fixed blades reaching inwardly between said moving blades and curved withan inward spiral in the direction of rotation of said moving blades, said fixed blades being of greater width at the periphery than at the root, said moving blades having a difierent direction from that of the fixed blades in respectto the radius substantially as described.

, 7. A turbine compressor or pump having in combination rows of moving blades, rows of fixed blades of non-radial form projecting inwardly between said rows of moving blades, the number of fixed blades being other than a multiple of the number of moving blades in eaci: row, said moving blades having a dili'erent direction from that ol the fixed blades in respect to the radius substantially as described.

8. itturbine compressor or pump having in combii'iation rows of moving blades, rows of fixed blades of nonsradial form projecting inwardly between said rows of moving blades, the number of fixed blades being greater than any other than tne multiple of the number of moving blades in eacu row, said 'moving blades :z'aving a dillerent direction from teat ol' the fixed blades in respect to the radius substantially as described.

in testimony whereof we have signed our names to t.:is specification in tne presence of two'subscribing witnesses.

CllAllbllS ALGEHNOX PARSONS. i\lil'llllll Ql'lN'llN (lAltNllGlll. -\Vilnesses: Hnxm" .xnlumn .DAKYNS, Jn.,

FREDEIHOK Gonnox llAY Bnnronn.

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